I pretty much lived this way since 2015 (though I had many, many Known site throwing them on like Halloween costumes. Have a blast and throw em in the closet for memories). Known and #IndieWeb just work. WordPress and Known together just works
Though this year I left WordPress and just made a few static pages for https://jgregorymcverry.com though with microformats I built an accidental blog that just works....no displaying webmentions (yet).